Hi,
In trying to use the MODx Backup tool to backup one of my sites’ database using 0.9.6.3, I’ve been finding that the download is being cancelled before I even get to save the .sql file. I’ve had limited success at fixing this by opening the backup manager frame in a new window, removing the "s" from the "https://", reloading the page and downloading from there. But of course this goes around the SSL Cert, which is pointless.
The solution seems to lie in IE’s (6, 7, and

inability to deal with caching under https conditions. This link on the PHP website helps bring clarity to the problem:
http://www.php.net/manual/en/function.header.php#95604
Fix to be added at line 24 of /manager/actions/bkmanager.static.php:
header('Expires: 0');
header('Cache-Control: private');
header('Pragma: cache')
This fix still seems to exist through to version 1.0.3, might it be a worthwhile fix for future versions?